Double-pipeline dust removal device for heavy calcium carbonate powder production

Abstract

The utility model belongs to the technical field of heavy calcium carbonate powder production, and particularly relates to a double-pipeline dust removal device for heavy calcium carbonate powder production, which comprises a pipeline, a communicating pipe arranged at one end of the pipeline, a collecting device connected below the communicating pipe, and a quick change device connected with one end of the communicating pipe. The quick change device comprises a second motor, a driving wheel, a driven wheel, a matching frame, a matching sleeve, a clamping pipe, a variable-diameter plate, a clamping mechanism, a variable-diameter groove and a fixed pipe, the driving wheel is arranged at the output end of the second motor, the driven wheel is connected to the outer side of the matching sleeve, the matching frame is installed in the variable-diameter groove, the fixed pipe is sleeved with the matching sleeve, and the variable-diameter plate is arranged in the matching sleeve. The variable-diameter groove is formed in the variable-diameter plate, the fixing pipe is connected to one end of the communicating pipe, and a sealing mechanism is arranged on the outer side of the clamping pipe and comprises a sealing sleeve and a groove. The production efficiency and the health level of workers are improved, and the influence on the environment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heavy calcium carbonate powder production, and specifically relates to a double-pipeline dust removal device for heavy calcium carbonate powder production. Background Art

[0002] In the existing technology, the dust problem generated during the production of heavy calcium carbonate powder is a common challenge. This dust not only reduces production efficiency, but also may pose a threat to workers' health. Therefore, effective dust removal equipment is crucial to ensure smooth production and workers' health.

[0003] However, the existing dual-pipe dust removal device has some shortcomings when dealing with dust problems in the production of heavy calcium carbonate powder. First, due to the large amount of dust generated in the production process, traditional dust removal devices are often difficult to effectively handle the dust, which leads to easy blockage inside the pipeline, which not only affects the continuity of production, but also may cause safety problems.

[0004] Secondly, existing dust removal devices mostly use filter plates to filter dust. Although this method can reduce dust emissions to a certain extent, the filter plates will gradually accumulate dust during use, resulting in a decrease in filtration efficiency. In addition, after long-term use, the filter plates may need to be replaced or maintained. However, since the filter plates are usually arranged inside the pipeline, this makes replacement and maintenance work complicated and time-consuming, especially when different filter plates need to be replaced according to different production needs. This inconvenient disassembly and assembly process will seriously affect production efficiency and progress.

[0005] In addition, although some existing structures can achieve rapid replacement and maintenance of filter plates, these structures are often too simple and easily lead to leakage at the pipe joints. Such leakage will not only reduce the dust removal effect, but may also pollute the environment, increase maintenance costs, and pose a threat to workers' health.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0007] The utility model aims to provide a double-pipe dust removal device for heavy calcium carbonate powder production to solve the problems mentioned in the background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A double-pipe dust removal device for heavy calcium carbonate powder production, comprising:

[0010] A pipeline, wherein a connecting pipe is provided at one end of the pipeline, a collecting device is connected below the connecting pipe, and a quick-change device is connected at one end of the connecting pipe;

[0011] The quick-change device comprises a second motor, a driving wheel, a driven wheel, a matching frame, a matching sleeve, a clamping tube, a reducing plate, a clamping mechanism, a reducing groove and a fixed tube, wherein the second motor is detachably mounted on the outside of the fixed tube, the driving wheel is arranged at the output end of the second motor, the driven wheel is fixedly connected to the outside of the matching sleeve, and the driven wheel is meshed with the driving wheel, the matching frame is movably mounted in the reducing groove, the matching sleeve is movably sleeved on the outside of the fixed tube, the reducing plate is fixedly arranged in the matching sleeve, the reducing groove is provided on the reducing plate, the fixed tube is fixedly connected to one end of one of the connecting tubes, and the fixed tube is detachably sleeved on the outside of the clamping tube, and a sealing mechanism is arranged on the outside of the clamping tube;

[0012] The sealing mechanism includes a sealing sleeve and a groove, a plurality of the grooves are opened on the inner side of the fixed tube, a plurality of the sealing sleeves are connected to the outer side of the clamping tube, and the sealing sleeves are adapted to the grooves, a filter plate is provided on one side of the connecting tube, the filter plate is detachably mounted on one end of the clamping tube by bolts, and a partition is provided in the pipeline.

[0013] Preferably, a bellows is provided at one end of the card tube, and the card tube is movably connected to one end of another connecting tube via the bellows.

[0014] Preferably, a connecting plate is provided on the outside of the clamping tube, a hydraulic cylinder is provided on the outside of the connecting tube, a hydraulic rod is provided at the output end of the hydraulic cylinder, a sliding rod is provided at one end of the hydraulic rod, the sliding rod and the connecting plate are slidably connected, limit plates are provided at both ends of the sliding rod, and the sliding rod is detachably connected to the hydraulic rod through one of the limit plates.

[0015] Preferably, the clamping mechanism comprises a clamping rod and a clamping groove, wherein the clamping rod is fixedly connected to one side of the matching frame, the clamping groove is arranged outside the clamping tube, and one end of the clamping rod is inserted into the clamping groove.

[0016] Preferably, a slope is provided in the clamping groove, a sealing plate is provided on the outer side of the clamping tube, a sealing groove is provided on the inner side of the fixing tube, and the sealing plate is matched with the sealing groove.

[0017] Preferably, the collecting device comprises a collecting box and a box door, the collecting box is installed below the connecting pipe, and the box door is movably installed on one side of the collecting box by a hinge. The setting of the collecting device can reduce the occurrence of pipeline blockage.

[0018] Preferably, a cleaning plate is provided in the collection box, and the cleaning plate can be movably installed in the collection box. A movable plate is provided on one side of the cleaning plate, and a screw is provided on the inner side of the collection box. The movable plate is movably connected to the screw through a thread.

[0019] Preferably, a first motor is provided on one side of the collection box, and an output end of the first motor is connected to one end of a lead screw.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] (1) The collecting device of the utility model includes multiple components of a collecting box and a box door. This design can effectively collect and clean the filtered dust and prevent clogging inside the pipeline. When dust falls into the collecting box, the first motor is turned on to drive the lead screw to rotate, so that the cleaning plate pushes the dust to move. By opening the box door, the dust in the collecting box is uniformly collected and processed using an external storage device. The movement of the cleaning plate can push the dust in the collecting box to move, making it easier to clean and collect. Overall, the effective operation of the collecting device can improve the dust removal efficiency, reduce the risk of pipeline clogging, and improve production efficiency and safety.

[0022] (2) The quick-change device of the utility model includes components such as a second motor, a driving wheel, a driven wheel, a matching frame, a matching sleeve, a clamping tube, a reducing plate, a clamping mechanism, a reducing groove and a fixed tube. This design can realize the rapid replacement of the filter plate and improve the production efficiency. Through the drive of the second motor, the rotation of the driving wheel and the driven wheel can drive the rotation of the matching sleeve and the reducing plate, thereby making the matching frame slide in the reducing groove, thereby realizing the movement of the clamping rod and the disengagement of the clamping rod from the clamping groove. The drive of the hydraulic cylinder can make the clamping tube disengage from the fixed tube, thereby realizing the replacement of the filter plate. Overall, the effective operation of the quick-change device can improve the replacement efficiency of the filter plate, reduce production interruptions, and improve production efficiency and stability.

[0023] (3) The sealing mechanism of the utility model includes components such as a sealing sleeve and a groove. A plurality of grooves are opened on the inner side of the fixed pipe, and a plurality of sealing sleeves are connected to the outer side of the clamping pipe. This design can provide good sealing performance and prevent leakage at the pipe connection. The matching of the sealing sleeve and the groove can ensure the sealing strength at the connection between the fixed pipe and the clamping pipe. The matching of the sealing plate and the sealing groove can further enhance the sealing strength. Overall, the effective operation of the sealing mechanism can prevent leakage at the pipe connection, improve the reliability and safety of the equipment, and reduce environmental pollution and waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 for Figure 1 A cross-sectional view of

[0026] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the collection box part of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the quick-change device part of the utility model;

[0029] Figure 6 It is a schematic cross-sectional structure diagram of the quick-change device and the sealing mechanism of the utility model;

[0030] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at B in the middle;

[0031] Figure 8 for Figure 6 Schematic diagram of the local enlarged structure at point C in the middle.

[0032] Description of main reference numerals:

[0033] 1. Pipeline; 2. Connecting pipe; 3. Second motor; 4. Driving wheel; 5. Driven wheel; 6. Matching frame; 7. Matching sleeve; 8. Clamping tube; 9. Variable diameter plate; 10. Variable diameter groove; 11. Fixed pipe; 12. Sealing sleeve; 13. Groove; 14. Filter plate; 15. Bellows; 16. Connecting plate; 17. Hydraulic cylinder; 18. Hydraulic rod; 19. Sliding rod; 20. Limiting plate; 21. Clamping rod; 22. Clamping groove; 23. Slope; 24. Sealing plate; 25. Sealing groove; 26. Collecting box; 27. Box door; 28. Cleaning plate; 29. ​​Movable plate; 30. Lead screw; 31. First motor; 40. Partition. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Example

[0036] See attached Figure 1-8 , a double-pipe dust removal device for heavy calcium carbonate powder production, comprising:

[0037] Pipeline 1, one end of which is provided with a connecting pipe 2, a collecting device is connected below the connecting pipe 2, and one end of the connecting pipe 2 is connected with a quick-change device;

[0038] The quick-change device includes a second motor 3, a driving wheel 4, a driven wheel 5, a matching frame 6, a matching sleeve 7, a clamping tube 8, a reducing plate 9, a clamping mechanism, a reducing groove 10 and a fixed tube 11. The second motor 3 is detachably mounted on the outside of the fixed tube 11, the driving wheel 4 is arranged at the output end of the second motor 3, the driven wheel 5 is fixedly connected to the outside of the matching sleeve 7, and the driven wheel 5 is meshed with the driving wheel 4, the matching frame 6 is movably mounted in the reducing groove 10, the matching sleeve 7 is movably sleeved on the outside of the fixed tube 11, the reducing plate 9 is fixedly arranged in the matching sleeve 7, the reducing groove 10 is opened on the reducing plate 9, the fixed tube 11 is fixedly connected to one end of one of the connecting tubes 2, and the fixed tube 11 is detachably sleeved on the outside of the clamping tube 8, and a sealing mechanism is arranged on the outside of the clamping tube 8;

[0039] The sealing mechanism includes a sealing sleeve 12 and a groove 13. Multiple grooves 13 are opened on the inner side of the fixed tube 11. Multiple sealing sleeves 12 are connected to the outer side of the clamping tube 8, and the sealing sleeves 12 are adapted to the grooves 13. A filter plate 14 is provided on one side of the connecting tube 2. The filter plate 14 is detachably installed on one end of the clamping tube 8 by bolts. A partition 40 is provided in the pipeline 1.

[0040] In this embodiment, a bellows 15 is provided at one end of the clamping tube 8, and the clamping tube 8 is movably connected to one end of another connecting tube 2 through the bellows 15; a connecting plate 16 is provided on the outside of the clamping tube 8, and a hydraulic cylinder 17 is provided on the outside of the connecting tube 2. A hydraulic rod 18 is provided at the output end of the hydraulic cylinder 17, and a sliding rod 19 is provided at one end of the hydraulic rod 18. The sliding rod 19 is slidably connected to the connecting plate 16, and limit plates 20 are provided at both ends of the sliding rod 19. The sliding rod 19 is detachably connected to the hydraulic rod 18 through one of the limit plates 20.

[0041] In addition, in this embodiment, the clamping mechanism includes a clamping rod 21 and a clamping groove 22. The clamping rod 21 is fixedly connected to one side of the matching frame 6, and the clamping groove 22 is opened on the outside of the clamping tube 8. One end of the clamping rod 21 is inserted into the clamping groove 22. A slope 23 is provided in the clamping groove 22, a sealing plate 24 is provided on the outside of the clamping tube 8, and a sealing groove 25 is opened on the inside of the fixed tube 11, and the sealing plate 24 is adapted to the sealing groove 25.

[0042] When the filter plate 14 needs to be maintained or replaced, the second motor 3 is first turned on. The second motor 3 drives the driven wheel 5 to rotate through the driving wheel 4 connected to the output end, and then the driven wheel 5 drives the matching sleeve 7 to rotate, and then the matching sleeve 7 drives the reducing plate 9 and the reducing groove 10 to rotate. Due to the special structural design of the reducing groove 10, the rotation of the reducing groove 10 will cause the matching frame 6 to slide in the reducing groove 10, and at the same time, the matching frame 6 will drive the clamping rod 21 to move outward, and make one end of the clamping rod 21 gradually disengage from the clamping groove 22. When the clamping rod 21 is completely After the filter is separated from the card slot 22, the second motor 3 is turned off, and then the two hydraulic cylinders 17 are turned on. The hydraulic cylinder 17 drives the limit plate 20 and the slide bar 19 to move through the hydraulic rod 18 connected to the output end, thereby driving the connecting plate 16 to move, and then driving the card tube 8 to gradually separate from the fixed tube 11, and the card tube 8 squeezes the bellows 15, so that the bellows 15 is compressed, and then the card tube 8 drives the filter plate 14 to separate from the fixed tube 11 together. After the maintenance or replacement of the filter plate 14 is completed, the hydraulic cylinder 17 is turned on again. The hydraulic cylinder 17 drives the sliding rod 19 and the limiting plate 20 to move again through the hydraulic rod 18, so that the limiting plate 20 pushes the clamping tube 8 to be reinserted into the fixed tube 11, and then the second motor 3 is turned on again to reverse the second motor 3, and then the second motor 3 drives the matching sleeve 7 to reset through the cooperation of the driving wheel 4 and the driven wheel 5, so that the reducing plate 9 drives the matching frame 6 to reset through the reducing groove 10, and then the matching frame 6 drives the clamping rod 21 to be reinserted into the clamping groove 22. Since the clamping groove 22 is provided with a slope 23 of an inclined structure, One end of the clamping rod 21 will drive the clamping tube 8 to move toward the inside of the fixed tube 11 through the slope 23, and at the same time, the clamping tube 8 will drive the connecting plate 16 to slide on the sliding rod 19, and then the multiple sealing plates 24 arranged on the outside of the clamping tube 8 will be completely inserted into the sealing groove 25 opened in the fixed tube 11, ensuring the sealing strength of the connection between the fixed tube 11 and the clamping tube 8. At the same time, the multiple sealing sleeves 12 arranged on the outside of the clamping tube 8 will be engaged with the corresponding grooves 13, thereby further improving the sealing strength, and one end of the clamping tube 8 will completely press the filter plate 14 against the fixed tube 11.

[0043] In this embodiment, the specific structure of the collecting device is as follows: the collecting device includes a collecting box 26 and a box door 27, the collecting box 26 is installed below the connecting pipe 2, and the box door 27 is movably installed on one side of the collecting box 26 through a hinge; a cleaning plate 28 is provided in the collecting box 26, and the cleaning plate 28 is movably installed in the collecting box 26, a movable plate 29 is provided on one side of the cleaning plate 28, a screw 30 is provided on the inner side of the collecting box 26, and the movable plate 29 is movably connected to the screw 30 through a thread; a first motor 31 is provided on one side of the collecting box 26, and the output end of the first motor 31 is connected to one end of the screw 30.

[0044] When the device is needed, the dust-containing gas will enter through the right side of the pipe 1. Due to the obstruction of the partition (40), the dust-containing gas will enter the connecting pipe 2 connected to one side, and then gradually flow to the fixed pipe 11. After being filtered by the filter plate 14, the clean gas will flow into the other side of the fixed plate and enter the clamping pipe 8 and the bellows 15. Then the clean gas will flow into the other end of the pipe 1 through another connecting pipe 2 and then be discharged. The dust filtered by the filter plate 14 will fall into the collection box 26 arranged below due to gravity. Some dust will adhere to one side of the filter plate 14. When it passes through When there is too much dust adhering to the filter plate 14, the filter plate 14 needs to be removed and replaced. After the dust dropped into the collection box 26 is collected for a period of time, the first motor 31 arranged on one side of the collection box 26 is opened, and the first motor 31 drives the lead screw 30 to rotate. Since the movable plate 29 and the lead screw 30 are movably connected by threads, the movable plate 29 will drive the cleaning plate 28 to move in the collection box 26, and at the same time push the dust accumulated in the collection box 26 to move, and then open the box door 27, and then use the external storage device to uniformly collect and process the dust pushed out of the collection box 26, thereby effectively preventing blockage inside the pipeline 1.

[0045] In summary, when the device of the utility model is in use or running: when the filter plate 14 needs to be maintained or replaced, the second motor 3 is first turned on, and the second motor 3 drives the driven wheel 5 to rotate through the driving wheel 4 connected to the output end, and then the driven wheel 5 drives the matching sleeve 7 to rotate, and then the matching sleeve 7 drives the reducing plate 9 and the reducing groove 10 to rotate. Due to the special structural design of the reducing groove 10, the rotation of the reducing groove 10 will cause the matching frame 6 to slide in the reducing groove 10, and at the same time, the matching frame 6 will drive the clamping rod 21 to move outward, and make one end of the clamping rod 21 gradually move out of the clamping groove 22. When the clamping rod 21 is completely separated from the clamping groove 22, the second motor 3 is turned off, and then the two hydraulic cylinders 17 are turned on. The hydraulic cylinder 17 drives the limit plate 20 and the slide bar 19 to move through the hydraulic rod 18 connected to the output end, thereby driving the connecting plate 16 to move, and then driving the clamping tube 8 to gradually separate from the fixed tube 11, and the clamping tube 8 squeezes the bellows 15, so that the bellows 15 is compressed, and then the clamping tube 8 drives the filter plate 14 to separate from the fixed tube 11 together, and then after the maintenance or replacement of the filter plate 14 is completed, The hydraulic cylinder 17 is opened again, so that the hydraulic cylinder 17 drives the sliding rod 19 and the limiting plate 20 to move again through the hydraulic rod 18, so that the limiting plate 20 pushes the clamping tube 8 to be reinserted into the fixed tube 11, and then the second motor 3 is opened again, so that the second motor 3 is reversed, and then the second motor 3 drives the matching sleeve 7 to reset through the cooperation of the driving wheel 4 and the driven wheel 5, so that the reducing plate 9 drives the matching frame 6 to reset through the reducing groove 10, and then the matching frame 6 will drive the clamping rod 21 to be reinserted into the clamping groove 22. The ramp 23, one end of the clamping rod 21 will drive the clamping tube 8 to move toward the inside of the fixed tube 11 through the ramp 23, and at the same time, the clamping tube 8 will drive the connecting plate 16 to slide on the sliding rod 19, and then the multiple sealing plates 24 arranged on the outside of the clamping tube 8 will be completely inserted into the sealing groove 25 opened in the fixed tube 11, ensuring the sealing strength of the connection between the fixed tube 11 and the clamping tube 8, and at the same time, the multiple sealing sleeves 12 arranged on the outside of the clamping tube 8 will be engaged with the corresponding grooves 13, thereby further improving the sealing strength, and one end of the clamping tube 8 will completely press the filter plate 14 against the fixed tube 11.

[0046] When the device is needed, the dust-containing gas will enter through the right side of the pipe 1. Due to the obstruction of the partition (40), the dust-containing gas will enter the connecting pipe 2 connected to one side, and then gradually flow to the fixed pipe 11. After being filtered by the filter plate 14, the clean gas will flow into the other side of the fixed plate and enter the clamping pipe 8 and the bellows 15. Then the clean gas will flow into the other end of the pipe 1 through another connecting pipe 2 and then be discharged. The dust filtered by the filter plate 14 will fall into the collection box 26 arranged below due to gravity. Some dust will adhere to one side of the filter plate 14. When it passes through When there is too much dust adhering to the filter plate 14, the filter plate 14 needs to be removed and replaced. After the dust dropped into the collection box 26 is collected for a period of time, the first motor 31 arranged on one side of the collection box 26 is opened, and the first motor 31 drives the lead screw 30 to rotate. Since the movable plate 29 and the lead screw 30 are movably connected by threads, the movable plate 29 will drive the cleaning plate 28 to move in the collection box 26, and at the same time push the dust accumulated in the collection box 26 to move, and then open the box door 27, and then use the external storage device to uniformly collect and process the dust pushed out of the collection box 26, thereby effectively preventing blockage inside the pipeline 1.

[0047] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A double-pipe dust removal device for heavy calcium carbonate powder production, characterized in that: include: A pipeline, wherein a connecting pipe is provided at one end of the pipeline, a collecting device is connected below the connecting pipe, and a quick-change device is connected at one end of the connecting pipe; The quick-change device comprises a second motor, a driving wheel, a driven wheel, a matching frame, a matching sleeve, a clamping tube, a reducing plate, a clamping mechanism, a reducing groove and a fixed tube, wherein the driving wheel is arranged at the output end of the second motor, the driven wheel is connected to the outside of the matching sleeve, the matching frame is installed in the reducing groove, the matching sleeve is movably sleeved on the outside of the fixed tube, the reducing plate is arranged in the matching sleeve, the reducing groove is provided on the reducing plate, the fixed tube is connected to one end of the connecting tube, and a sealing mechanism is arranged on the outside of the clamping tube; The sealing mechanism includes a sealing sleeve and grooves, multiple grooves are opened on the inner side of the fixed pipe, multiple sealing sleeves are connected to the outer side of the clamping pipe, a filter plate is provided on one side of the connecting pipe, the filter plate is installed at one end of the clamping pipe by bolts, and a partition is provided in the pipe.

2. The double-pipe dust removal device for heavy calcium carbonate powder production according to claim 1, characterized in that: One end of the clamping tube is provided with a bellows, and the clamping tube is movably connected to one end of another connecting tube through the bellows.

3. The double-pipe dust removal device for producing heavy calcium carbonate powder according to claim 2, characterized in that: A connecting plate is provided on the outside of the clamping tube, a hydraulic cylinder is provided on the outside of the connecting tube, a hydraulic rod is provided on the output end of the hydraulic cylinder, a sliding rod is provided on one end of the hydraulic rod, the sliding rod and the connecting plate are slidably connected, and limit plates are provided at both ends of the sliding rod. The sliding rod is detachably connected to the hydraulic rod through one of the limit plates.

4. The double-pipe dust removal device for producing heavy calcium carbonate powder according to claim 3, characterized in that: The clamping mechanism comprises a clamping rod and a clamping groove, wherein the clamping rod is fixedly connected to one side of the matching frame, the clamping groove is arranged outside the clamping tube, and one end of the clamping rod is inserted into the clamping groove.

5. The double-pipe dust removal device for producing heavy calcium carbonate powder according to claim 4, characterized in that: A slope is arranged in the clamping groove, a sealing plate is arranged on the outer side of the clamping tube, a sealing groove is opened on the inner side of the fixing tube, and the sealing plate is matched with the sealing groove.

6. The double-pipe dust removal device for producing heavy calcium carbonate powder according to any one of claims 1 to 5, characterized in that: The collecting device comprises a collecting box and a box door. The collecting box is installed below the connecting pipe, and the box door is movably installed on one side of the collecting box through a hinge.

7. The double-pipe dust removal device for heavy calcium carbonate powder production according to claim 6, characterized in that: A cleaning plate is arranged in the collection box, and the cleaning plate can be movably installed in the collection box. A movable plate is arranged on one side of the cleaning plate, and a lead screw is arranged inside the collection box. The movable plate is movably connected to the lead screw through a thread.

8. The double-pipe dust removal device for producing heavy calcium carbonate powder according to claim 7, characterized in that: A first motor is provided at one side of the collecting box, and an output end of the first motor is connected to one end of a lead screw.

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